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🛠️ Seal the deal with speed and strength—your boat’s best kept secret!
Sikaflex®-291 is a professional-grade marine sealant and adhesive offering fast curing, exceptional elasticity, and robust adhesion to multiple substrates including gelcoat, fiberglass, metal, and wood. It withstands harsh marine environments—fresh and sea water, acids, oils—and is NSF and USDA approved for potable water and incidental food contact. Ideal for above and below waterline applications, it delivers durable, vibration-resistant seals trusted by boat builders and marine professionals.
| ASIN | B01GPIXX5Y |
| Best Sellers Rank | #4,864 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #36 in Silicone Adhesives #46 in Adhesive Caulk #89 in Industrial Sealants |
| Brand Name | SIKA |
| Color | White |
| Compatible Material | Fiberglass, Metal, Wood |
| Container Type | Cartridge |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,341) |
| Included Components | 10.1 fl oz Cartridge |
| Item Form | Gel |
| Item Package Quantity | 1 |
| Item Type Name | Adhesive |
| Item Weight | 300 g |
| Manufacturer | Sika USA |
| Material Type | 1-C polyurethane |
| Model | 90919 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Fast Curing |
| Part Number | 90919 |
| Specific Uses For Product | Boating |
| Tensile Strength | 260 kips_per_square_inch |
| UPC | 033886005258 |
| Unit Count | 10.1 Fluid Ounces |
| Viscosity Level | Medium |
| Volume | 10.1 fluid ounces |
| Water Resistance Level | Water Resistant |
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